SEPARATION OF FATTY-ACID ESTERS FROM CHOLESTEROL IN ESTERIFIED NATURAL AND SYNTHETIC MIXTURES BY SUPERCRITICAL CARBON-DIOXIDE

被引：10
|
作者：
YEH, AI
LIANG, JH
HWANG, LS
机构：
[1] Graduate Institute of Food Science and Technology, National Taiwan University, Taipei
来源：
JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY | 1991年 / 68卷 / 04期
关键词：
CHOLESTEROL; FATTY ACID ESTERS; SUPERCRITICAL EXTRACTION;
D O I：
10.1007/BF02657613
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The solubility of cholesterol in supercritical carbon dioxide was determined by a continuous flow method. The solubility of cholesterol increased with increasing pressure and exhibited retrograde behavior. The Chrastil equation was used to describe the relationship between solubility and the density of carbon dioxide. A model mixture was made by adding cholesterol and fatty acid esters together. Squid visceral oil was esterified as the feed material. Both the model mixture and esterified squid visceral oil were extracted by supercritical carbon dioxide. The experimental results showed that cholesterol could be removed from a model mixture and from esterified squid visceral oil at low pressure (1500 psig) and high temperature (328.2-degrees K). Under these conditions, cholesterol content in the extract was reduced from 2867 mg/100 g to 14.1 mg/100 g.
引用
收藏
页码：224 / 229
页数：6
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